Leading 1-0 through young striker Morata, Ramos headed home to extend his side's advantage on 12 minutes for his first contribution of the evening.

His next, however, was not so clever. A foul on Roberto Trashorras earned him a yellow card and just 45 seconds later, he was shown a second for handball.

Clash of the titans 6 photos

Clash of the titans6 photos

Welcome break – After a rocky opening period in which Real hit the post, United shocked the home crowd by taking a 20th minute lead through Danny Welbeck. The England striker rose highest to meet Wayne Rooney's corner and head the ball inside the far post to spark wild celebrations amongst the visiting supporters.

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Clash of the titans6 photos

Jumping for joy – Welbeck dances away in celebration after firing United ahead, while most of the crowd look on in stunned silence.

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Clash of the titans6 photos

Guess who? – It had to happen, didn't it? That man Cristiano Ronaldo leveled for Real against his former club with an unstoppable 30th minute header after climbing high above Patrice Evra and Jonny Evans.

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Clash of the titans6 photos

Ronaldo's muted celebration shows the respect he still holds for his former employers. The Portuguese star, who joined Real for a world record fee of $124 million back in 2009, was at the heart of everything positive about his team's performance.

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Clash of the titans6 photos

United miss out – United's Robin van Persie had two glorious opportunities to win the game for United in the second half, one which was turned onto the crossbar by Diego Lopez and another which was kicked off the line by Xabi Alonso.

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Clash of the titans6 photos

Pointing the way – Real manager Jose Mourinho was left frustrated after his side dominated for long periods but failed to find a winner. In the end, the home side was indebted to a couple of fine saves from Diego Lopez to keep the scoreline level.

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'Box Office' Beckham thrills French audience 9 photos

'Box Office' Beckham thrills French audience9 photos

Beckham mania – Hundreds of fans and journalists flocked to the Paris Saint-Germain training ground Wednesday to get a glimpse of David Beckham in action on the practice field. The interest in Beckham's move to the French club has caused huge excitement with the anticipation building ahead of the midfielder's possible debut on Sunday.

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'Box Office' Beckham thrills French audience9 photos

Bonjour Becks! – David Beckham took part in his first training session with his new Paris Saint-Germain teammates less than 24 hours after watching them claim a 2-1 win at Valencia in the last-16 round of the Champions League. on Tuesday.

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'Box Office' Beckham thrills French audience9 photos

Getting stuck in – Beckham, 37, was put through is paces at the club's open training day where more than 100 journalists turned up to witness the event. The former Manchester United and Real Madrid star is hoping to make his debut against Sochaux on Sunday, but it's not known if his pop star wife Victoria will be in attendance. Beckham's family has remained in London where his children Brooklyn, Romeo and Cruz attend school following their move from Los Angeles.

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'Box Office' Beckham thrills French audience9 photos

Working out – Beckham, who won 115 caps for England, has signed a five-month deal with the Qatari-backed club, but has revealed that his salary will be donated to a Paris children's charity. He will now hope to force his way into the side and link up with the likes of Zlatan Ibrahimovic, Lucas Moura and Ezequiel Lavezzi with the team six points clear at the top of Ligue 1.

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'Box Office' Beckham thrills French audience9 photos

Welcome wave – Beckham waves to the waiting press pack as he makes his way out at the club's Camp des Loges training center in Saint-Germain-en-Laye, near Paris. The session, which was led by PSG's Italian coach Carlo Ancelotti, was shown live on French television.

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'Box Office' Beckham thrills French audience9 photos

Pretty in pink – Beckham shows off his new pink boots, a pair of which even Posh Spice might approve of. While Beckham is busy preparing for his debut, fashion designer Victoria was having her latest designs shown off by models in London.

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'Box Office' Beckham thrills French audience9 photos

Hot stuff – After working up a sweat, Beckham throws off his top and gets back to work with the players who didn't feature in Tuesday's win at Valencia. If Beckham doesn't play against Sochaux on Sunday, he could line-up the following week against fierce rival Marseille and fellow Englishman Joey Barton.

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'Box Office' Beckham thrills French audience9 photos

Life's a beach – Beckham takes to the sand as he steps up his training regime. Running on sand has several long-term benefits which includes strengthening the lower body muscles, burning more calories and is supposed to be easier on the joints as opposed to grass.

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'Box Office' Beckham thrills French audience9 photos

Becks and Leo – Beckham watched PSG's win at Valencia alongside the club's sporting director Leonardo. The pair looked on as their side edged out Valencia 2-1 in the first leg thanks to goals from Ezequiel Lavezzi and Javier Pastore, before Zlatan Ibrahimovic was sent off late on. The Swede will miss the second leg in the French capital on March 6.

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Champions League: It's back! 12 photos

Champions League: It's back!12 photos

Celtic cauldron – Celtic had suffered just two home defeats in 23 Champions League games before welcoming Juventus to Parkhead. The Scottish champion saw off the might of Barcelona in the Group Stage with the famous Celtic atmosphere a huge factor in the team's success.

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Champions League: It's back!12 photos

Magic Matri – Alessandro Matri gave Juventus the perfect start by firing the Italian side ahead after just three minutes. Matri's effort was adjudged to have crossed the line before Claudio Marchisio smashed the ball into the back of the net.

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Champions League: It's back!12 photos

Party time – Juventus stun Celtic Park thanks to Matri's early strike and temporarily silence one of the most partisan crowds in European football. The goal came following a dreadful defensive error from Efe Ambrose, who helped Nigerian win the Africa Cup of Nations just last Sunday.

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Champions League: It's back!12 photos

I'm watching you – Celtic captain Scott Brown rages at Juventus playmaker Andrea Pirlo during the high octane clash. Pirlo, who played a starring role in Italy's run to the World Cup Final last year, was outstanding once again at the heart of the Juventus midfield.

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Champions League: It's back!12 photos

Hard for Hooper – Celtic striker Gary Hooper had scored 22 goals in 34 appearances before taking on Juventus Tuesday, but the in-form forward couldn't find a way past a deteremined Italian defense.

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Champions League: It's back!12 photos

Double trouble – Claudio Marchisio celebrates after firing Juventus into a 2-0 lead with 13 minutes remaining. After enduring a barrage of Celtic pressure, Marchisio rounded off an incisive move to inflict further damage upon the home side.

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Champions League: It's back!12 photos

Game over – Mirko Vucinic rubbed salt into Celtic wounds by firing home his side's third and final goal in the 83rd minute following another defensive mistake by Efe Ambrose. The tie is all but over going into the second leg in Turin on March 6.

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Champions League: It's back!12 photos

Beckham's back – David Beckham was in attendance to watch his new club Paris Saint-Germain take on Valencia in the last-16 of the European Champions League. Beckham recently signed a five-month deal to play in the French capital and hopes to make his debut in the next couple of weeks.

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Champions League: It's back!12 photos

Fast start – Ezequiel Lavezzi celebrates his early strike for Paris Saint-Germain with teammate Zlatan Ibrahimovic. The Argentine struck in the 10th minute and has now scored in each of his past three Champions League games.

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Champions League: It's back!12 photos

Perfect Pastore – Javier Pastore doubled PSG's lead with just two minutes of the first half remaining after a flowing move scythed through the Valencia defense. The talented Argentine playmaker was just one of a number of stars on show for the French club along with Ibrahimovic, Lucas Moura and Lavezzi.

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Champions League: It's back!12 photos

Red mist – Ibrahimovic was shown a straight red card following a controversial studs-up challenge on Andres Guardado. It was the Swede's third red of his Champions League career, only Edgar Davids, four, has more. It means that the striker will miss the second leg in Paris.

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Champions League: It's back!12 photos

Rami's rocking – Valencia's Adil Rami pulled a goal back in the final minute to give his side a lifeline going into the second leg in France. The La Liga side had won all eight of its Champions League home against French opposition before Tuesday's defeat.

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Off he trudged with 18 minutes on the clock, a goal, two yellow cards and an early bath.

While receiving two bookings within 45 seconds is unusual, Ramos' dismissal is anything but.

In Italy, Fiorentina produced the performance of the day by crushing Inter 4-1.

Two goals each from Adem Ljajic and Stevan Jovetic gave the Viola all three points with Antonio Cassano registering a late consolation for the visitor.

The win moves Fiorentina up to sixth, just a point behind fifth placed Inter.

Napoli's quest to move to within two points of league leader Juventus suffered a blow after it was held to a goalless draw by Sampdoria.

Being Balotelli: The life and times of Mario 7 photos

Being Balotelli: The life and times of Mario7 photos

Home again – Mario Balotelli was mobbed by fans outside a restaurant as he returned home to Italy to complete his $30 million move from AC Milan to Manchester City.

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Being Balotelli: The life and times of Mario7 photos

Training ground fracas – His future at the English Premier League champions had been in doubt since his training ground bust-up with manager Roberto Mancini in early January, when coaching staff had to intervene to separate the pair. Mancini later downplayed the tussle, sparked by Balotelli's hostile tackle on a fellow player, as "nothing unusual."

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Being Balotelli: The life and times of Mario7 photos

Balotelli's breakthrough – Balotelli made his Inter Milan debut in 2007 after being signed by the club at the age of 15. He scored the first goals of his senior career in a Coppa Italia match against Reggina in December of that year.

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Being Balotelli: The life and times of Mario7 photos

Testing the Special One – Balotelli joined Manchester City from Italian club Inter Milan. His relationship with Inter coach Jose Mourinho endured numerous ups and downs. Disciplinary issues littered his time at the San Siro and the situation came to a head in March 2010, when Balotelli was left out of Inter's squad for a Champions League tie after an altercation with Mourinho.

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Being Balotelli: The life and times of Mario7 photos

Red mist – Mancini was Balotelli's first coach at Inter Milan and the pair were reunited in 2010 when the striker joined Manchester City. The start of Balotelli's City career was disrupted by injury, but he finally scored his first Premier League goals in a 2-0 away win at West Bromwich Albion. His joy at netting a brace was short-lived, however, as he was sent off after picking up two yellow cards.

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Being Balotelli: The life and times of Mario7 photos

'Why always me?' – Balotelli became a hit with City's fans, as much for off-field antics as his goalscoring. His stock with the supporters was never higher than in October 2011, when he scored twice in City's 6-1 thumping of neighbors Manchester United at Old Trafford. After scoring the first goal in City's victory, he revealed a t-shirt stating "Why always me?" -- instantly creating one of the most iconic images of the Premier League era. City went to beat United to the English title on goal difference with a dramatic last-gasp victory over Queens Park Rangers on the final day of the season.

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Being Balotelli: The life and times of Mario7 photos

Super Mario – Balotelli reminded everyone of his undoubted talent during the 2012 European Championships. He scored three times as Italy reached the final, including both goals in the Azzurri's 2-1 semi win over Germany. Italy lost 4-0 to Spain in the final of the tournament co-hosted by Poland and Ukraine.

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Ronaldo fires United warning 5 photos

Ronaldo fires United warning5 photos

Ronaldo fires United warning – Real Madrid forward Cristiano Ronaldo warmed up for the Champions League clash with his former club Manchester United by scoring a hat-trick in the 4-1 victory at home to Sevilla.

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Ronaldo fires United warning5 photos

Mancini's misery – English Premier League leaders United are in pole position to reclaim the title from Manchester City, whose manager Roberto Mancini was furious with his players after a 3-1 defeat at Southampton.

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Ronaldo fires United warning5 photos

Barry's blooper – City's low point came when Gareth Barry -- who had been at fault for the first goal -- passed the ball into his own net to restore Southampton's advantage after Edin Dzeko had reduced the deficit just before the break.

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Ronaldo fires United warning5 photos

Sock-er style – Alessandro Matri helped Juventus move five points clear in Italy's Serie A, scoring the second goal in the 2-0 win at home to Fiorentina despite losing his boot before firing into the net.

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Ronaldo fires United warning5 photos

Alaba double – David Alaba helped Bayern Munich move 15 points clear in Germany's Bundesliga, with the 20-year-old Austrian scoring twice in the 4-0 win at home to Schalke.

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Man Utd move 12 points clear 4 photos

Man Utd move 12 points clear4 photos

Van Persie pounces – Robin van Persie celebrates after scoring Manchester United's second goal in the 2-0 win at home to Everton, which put his team 12 points clear in the English Premier League.

With Juventus losing to Roma on Saturday, Walter Mazzarri's side had the perfect opportunity to get back on track at the San Paolo.

But it failed to find a way through a stubborn Sampdoria defense and now sits four points off the lead.

"This is not good enough," Mazzarri told reporters.

"If we want to be up there challenging we need more. We need consistency, it makes me angry when he show up and have these unexplainable performances."

Elsewhere, Catania moved up to seventh and within sight of a Europa League place with a 1-0 home over Bologna.

Valter Birsa's 87th-minute winner handed Torino a 2-1 victory over Atalanta, while Juraj Kucka's 33rd-minute goal was enough to see Genoa creep further away from the drop zone with a 1-0 win over Udinese.

A Marco Sau double for Cagliari assured a 2-0 win away to new boys Pescara and moved the Sardinians up to 14th.